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https://issues.apache.org/jira/browse/TIKA-185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12662341#action_12662341
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Andrzej Rusin commented on TIKA-185:
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Uwe, Jukka:
I just notoced that I agreed to both of you ideas, which are contrary.
So:
- if we are concerned about security, simplicity, etc, we should totally ignore
the system entities,
- if we are concerned about system entities content, we could try to resolve
them.
I think that this behaviour can be made configurable by means of the
tika-config.xml file.
> XML files with (unsatisfied) SYSTEM entities can not be extracted
> -----------------------------------------------------------------
>
> Key: TIKA-185
> URL: https://issues.apache.org/jira/browse/TIKA-185
> Project: Tika
> Issue Type: Bug
> Components: parser
> Affects Versions: 0.2
> Reporter: Andrzej Rusin
> Priority: Minor
> Attachments: xmlTest.xml, xmlTest2.xml
>
>
> When trying to extract an XPI file (Firefox extenstion, which probably is not
> a best candidate for extract) I got the below exception.
> It was caused by SYSTEM entities refering the chrome:// protocol.
> However, obviously any XML file that contains SYSTEM entities which can not
> be accessed at the time of extraction will not be extracted properly.
> Here is the stack trace:
> java.net.MalformedURLException: unknown protocol: chrome
> at java.net.URL.<init>(URL.java:574)
> at java.net.URL.<init>(URL.java:464)
> at java.net.URL.<init>(URL.java:413)
> at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown
> Source)
> at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
> at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
> at org.apache.xerces.impl.XMLDTDScannerImpl.startPE(Unknown Source)
> at org.apache.xerces.impl.XMLDTDScannerImpl.skipSeparator(Unknown Source)
> at org.apache.xerces.impl.XMLDTDScannerImpl.scanDecls(Unknown Source)
> at org.apache.xerces.impl.XMLDTDScannerImpl.scanDTDInternalSubset(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
> at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
> at javax.xml.parsers.SAXParser.parse(SAXParser.java:198)
> at org.apache.tika.parser.xml.XMLParser.parse(XMLParser.java:57)
> at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:108)
> at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:80)
> at
> org.apache.tika.parser.pkg.PackageParser.parseEntry(PackageParser.java:93)
> at org.apache.tika.parser.pkg.ZipParser.parse(ZipParser.java:56)
> at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:108)
> at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:80)
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